express lane operational analysis...

EXPRESS LANE OPERATIONAL ANALYSIS EXPERIENCES IN FLORIDA

15TH INTERNATIONAL CONFERENCE ON MANAGED LANES

Shawn Birst, P.E., PTOE

Senior Transportation Engineer

Presentation Agenda

» Florida express lane projects

» Data collection requirements

» Traffic volume development

» Express lane implementation

» Output presentation

» Lessons learned

Florida Express Lane Experience

Traffic Analysis

» 150 miles of express lanes

» 130 study interchanges

Express Lane Experience

I-95 Express Phase 1

(District 6)SR 112/I-195 to GGI

7 mile project length

Traffic Analysis





(District 4 and 6)GGI to Broward Blvd


Traffic Analysis




I-75 PD&E

(District 4 and 6)Palmetto Expressway to I-595


Traffic Analysis




Palmetto Express (N/S)

(District 6)SR 836 to NW 154th Street


Traffic Analysis





(District 4)Stirling Rd to Linton Blvd


Traffic Analysis




I-595 PD&E Reeval.

(District 4)I-75 to I-95


Traffic Analysis




Palmetto Express (E/W)

(District 6)I-75 to GGI


Traffic Analysis




I-4 Ultimate P3

(District 5)SR 435 (Kirkman Rd) to SR 434


Traffic Analysis




I-295 W Express Phase 1

(District 2)SR 13/San Jose Blvd to I-95


Traffic Analysis





(District 2)IGP to I-295


Traffic Analysis




I-295 E Express Phase 1

(District 2)SR 9B to Town Center Pkwy


Traffic Analysis




I-95 PD&E

(District 2)JTB to Atlantic Blvd


Traffic Analysis



» TSIS / CORSIM

– Initial Florida express lane projects

– Manual/static express lane assignment

– TSIS 6.3 provides managed lane functionality

» PTV VISSIM

– Currently used on most Florida express lane projects

– Managed lane facilities (dynamic tolling)

• VISSIM 5.4

• VISSIM 6 (issues with COM scripts)

• VISSIM 7

• VISSIM 8

Simulation Programs

Work Flow for VISSIM Express Lane Analysis

Build Conditions (VISSIM)

(Roadway, traffic control, data collection)

Model Calibration

(Speed, volume, congestion)

Export to VISUM (ODME)

(Travel patterns with forecast volume)

Implement Express Lane Elements

(Routes, toll choice, decision models)

Alternatives Analysis

(Network, corridor & intersection output)

Existing Conditions (VISSIM)

(Roadway, traffic control, data collection)

Export to VISUM (ODME)

(Travel patterns with count volume)

Documentation and Approval

(DOT and FHWA)

Data Collection Requirements

» Interchange

– Turning movement counts

– Queue length

– Traffic signal data

» Freeway mainline

– Volume

– Travel speed (sensors, RITIS data)

– Travel time (travel time runs)

» Travel patterns

– O-D study (Bluetooth)

Traffic Volume Development

» Existing Conditions

– Balance point upstream of congestion

– Throughput at bottlenecks should equal volume count

» Future Conditions

– Regional model to develop mainline demand volume

• Express lanes in the model or additional general purpose lanes capacity in model

• Peak period volume from model

• AADT, K, and D for mainline

• Growth rate from model applied to peak period

» O-D matrices for peak periods

– Demand targets

– O-D seed matrices

» ODME methods

– Spreadsheets (NCHRP 255/765)

– Models (VISUM, Cube Analyst, etc.)

Origin-Destination Matrix Estimation

Express Lane Implementation: Managed Lane Facility

» Managed Lane Route

– Temporary detour of a static route

– General purpose decision: no toll, no restrictions

– Managed decision: toll and/or occupancy restrictions

» Toll Pricing model

– Traffic Responsive or COM Script

• COM Script based on Florida’s Turnpike tolling algorithm (developed with AECOM)

» Decision model

– Utility of the toll computed from travel time savings and current price

• Developed by Stated/Revealed Preference Surveys

• Parameters based on Florida’s Turnpike I-95 Phase 1 data (developed with AECOM)

Managed Lane Routes

» Route for each ingress and egress pair

» Consists of a general purpose and managed lane decision

» Referenced to a Express Lane Facility

– Toll Pricing Model

– Decision Model

» Choice is made at point of entry

Express Lane Network VISSIM ML Routes

GP

ML

Man

ag

ed

La

ne

Ro

ute

#1

Man

ag

ed

La

ne

Ro

ute

#2

Man

ag

ed

La

ne

Ro

ute

#3

GP

ML

Toll Pricing Model

» COM Script (primarily used)

– VB (or equivalent) script

– Florida’s Turnpike algorithm (density)

• Min toll = $.15/mile or $.50 segment

– Unique toll for each segment

– Combination script establishes total toll

– Update interval of 15 minutes

$0.0

$0.2

$0.4

$0.6

$0.8

$1.0

$1.2

$1.4

$1.6

$1.8

$2.0

$2.2

To

ll R

ate

per

Mile (

$)

Volume/Capacity

Revenue Maximizing

Traffic Optimization

95 Exp. Phase 3 (Step Min)

95 Exp. Phase 3 (Step Max)

95 Exp. Phase 1 (Step Min)

95 Exp. Phase 1 (Step Max)

Decision Model

» Probability of vehicle using managed lane based on its utility

» Example Probability (short trips)

– Logit alpha = 1.0

– Time coefficient = 0.49

– Cost coefficient = -0.61

– Base utility = -0.8

Toll Price

Tra

vel

Tim

e S

avin

gs

(min

.)

Presentation of Results

» Speed profiles

» Lane schematics

» Heat maps

» Weave diagrams

» Travel time comparisons

» Network-wide

Halla

ndale

Beach B

lvd

Pem

bro

ke R

d

Holly

wo

od B

lvd

Sheridan S

t

Stirlin

g R

d

Griff

in R

d

I-5

95

SR

84 /

Marina B

lvd

Davie

Blv

d

Bro

ward

Blv

d

Sunrise B

lvd

Oakla

nd P

ark

Blv

d

Com

merc

ial B

lvd

Cypre

ss C

reek R

d

Atlantic B

lvd

Copans R

d

Sam

ple

Rd

SW

10th

St

Hill

sboro

Blv

d

Palm

etto P

ark

Rd

Gla

des R

d

Spanis

h R

iver/

Yam

ato

Rd

Congre

ss A

ve

Lin

ton B

lvd

0

10

20

30

40

50

60

70

80

90

Spee

d (

mile

s p

er h

ou

r)

I-95 Northbound Travel Speed Profile

I-95 Northbound

Speed Profiles

No-Build: I-95 Northbound Travel Speed Profile

Build: I-95 Northbound Travel Speed Profile

Ha

lland

ale

Be

ach

Blv

d

Pe

mb

roke

Rd

Ho

llyw

oo

d B

lvd

Sh

erid

an

St

Stirlin

g R

d

Griff

in R

d

I-5

95

SR

84 /

Ma

rina

Blv

d

Da

vie

Blv

d

Bro

wa

rd B

lvd

Su

nrise

Blv

d

Oa

kla

nd

Pa

rk B

lvd

Co

mm

erc

ial B

lvd

Cyp

ress C

reek R

d

Atla

ntic B

lvd

Co

pan

s R

d

Sa

mp

le R

d

SW

10th

St

Hill

sb

oro

Blv

d

Pa

lme

tto

Pa

rk R

d

Gla

de

s R

d

Sp

an

ish

Riv

er/

Ya

ma

to R

d

Co

ngre

ss A

ve

Lin

ton

Blv

d

0

10

20

30

40

50

60

70

80

90

Spee

d (

mile

s p

er h

ou

r)

I-95 Northbound Travel Speed Profile

I-95 Northbound

Speed Profiles

No-Build: I-95 Southbound Travel Speed Profile

Build: I-95 Southbound Travel Speed Profile

Ha

lland

ale

Be

ach

Blv

d

Pe

mb

roke

Rd

Ho

llyw

oo

d B

lvd

Sh

erid

an

St

Stirlin

g R

d

Griff

in R

d

I-595

SR

84 /

Ma

rina

Blv

d

Da

vie

Blv

d

Bro

wa

rd B

lvd

Su

nrise

Blv

d

Oa

kla

nd

Pa

rk B

lvd

Co

mm

erc

ial B

lvd

Cyp

ress C

reek R

d

Atla

ntic B

lvd

Co

pan

s R

d

Sa

mp

le R

d

SW

10th

St

Hill

sb

oro

Blv

d

Pa

lme

tto

Pa

rk R

d

Gla

de

s R

d

Sp

an

ish

Riv

er/

Ya

ma

to R

d

Co

ngre

ss A

ve

Lin

ton

Blv

d

0

10

20

30

40

50

60

70

80

90

Spee

d (

mile

s p

er h

ou

r)

I-95 Southbound Travel Speed Profile

I-95 Southbound

Halla

ndale

Beach B

lvd

Pem

bro

ke R

d

Holly

wood B

lvd

Sheridan S

t

Stirlin

g R

d

Griff

in R

d

I-595

SR

84 /

Marina B

lvd

Davie

Blv

d

Bro

ward

Blv

d

Sunrise B

lvd

Oakla

nd P

ark

Blv

d

Com

merc

ial B

lvd

Cypre

ss C

reek R

d

Atlantic B

lvd

Copans R

d

Sam

ple

Rd

SW

10th

St

Hill

sboro

Blv

d

Palm

etto P

ark

Rd

Gla

des R

d

Spanis

h R

iver/

Yam

ato

Rd

Congre

ss A

ve

Lin

ton B

lvd

0

10

20

30

40

50

60

70

80

90

Spe

ed

(m

ile

s p

er

ho

ur)

I-95 Southbound Travel Speed Profile

I-95 Southbound

Lane Schematics

Heat Maps

Travel Time and Speed Comparisons

AM Peak Hour No-Build Build 1 Build 2

DirectionGeneral Use

Lanes

Travel Time

(Travel

Speed)

Travel Time

(Travel

Speed)

%

Change

Travel Time

(Travel

Speed)

%

Change

I-295

Southbound

W. of US 17

to N. of US 1

(15 miles)

64.2 min

(14 mph)

17.6 min

(51 mph)-73%

16.3 min

(55 mph)-75%

I-295

Northbound

N. of US 1to

W. of US 17

(15 miles)

14.0 min

(64 mph)

13.9 min

(64 mph)-1%

13.8 min

(65 mph)-2%

PM Peak Hour No-Build Build 1 Build 2

DirectionGeneral Use

Lanes

Travel Time

(Travel

Speed)

Travel Time

(Travel

Speed)

%

Change

Travel Time

(Travel

Speed)

%

Change

I-295

Southbound

W. of US 17

to N. of US 1

(15 miles)

72.1 min

(12 mph)

14.3 min

(63 mph)-80%

14.5 min

(62 mph)-80%

I-295

Northbound

N. of US 1to

W. of US 17

(15 miles)

33.3 min

(27 mph)

26.2 min

34 mph)-21%

19.4 min

(46 mph)-42%

AM Peak Hour Build 1 Build 2

Direction Express LanesTravel Time

(Travel Speed)

Travel Time

(Travel Speed)

I-295

Southbound

W. of SR 13 to

OSA (2.7 miles)

2.6 min

(63 mph)2.5min

(65 mph)

I-295

Northbound

W. of I-95 to W. of

SR 13 (4.3 miles)

4.0 min

(65 mph)3.9 min

(66 mph)

PM Peak Hour Build 1 Build 2

Direction Express LanesTravel Time

(Travel Speed)

Travel Time

(Travel Speed)

I-295

Southbound

W. of SR 13 to

OSA (2.7 miles)

2.6

(64 mph)2.5

(65 mph)

I-295

Northbound

W. of I-95 to W. of

SR 13 (4.3 miles)

5.5

(47 mph)4.0

(65 mph)

General Use Lanes Express Lanes

Network-wide MOEs

AM Peak PM Peak

No-Build Build 1 Build 2 No-Build Build 1 Build 2

Average Speed (mph) 23 40 (74%) 41 (78%) 16 30 (88%) 37 (131%)

Total Delay (hr) 44,694 14,899 (-67%) 14,040 (-69%) 71,836 28,971 (-60%) 18,308 (-75%)

Latent Delay (hr) 115,195 55,340 (-52%) 54,023 (-53%) 166,841 56,864 (-66%) 43,478 (-74%)

Latent Demand (veh) 27,335 9,886 (-64%) 9,178 (-66%) 38,263 3,136 (-92%) 3,135 (-92%)

Total Travel Time (hr) 72,554 45,175 (-38%) 44,372 (-39%) 97,708 59,245 (-39%) 48,628 (-50%)

Total Stops 4,592,430868,259

(-81%)

792,346

(-83%)6,260,176

2,154,681

(-66%)

1,072,150

(-83%)

Vehicles Arrived 272,028 294,737 (8%) 295,460 (9%) 273,070 322,182 (18%) 322,241 (18%)

Lessons Learned

1. Setup and follow procedures/check lists

– Provide consistency and improve accuracy

2. Collect all necessary data– O-D patterns are critical

3. Simulation program– Maintain same version and patch

throughout the project

4. Network construction– Use high resolution images (.sid)

and design files

Lessons Learned

5. VISSIM/VISUM – Combination is valuable for ODME and

static route creation

6. Toll pricing and decision model – Use agency toll algorithm (if available)– Develop reasonable decision model

parameters • Adjustments may be required based on

simulation performance

7. Capacity constrained demand methods could be beneficial

– Excessive demand may cause express lanes to fail

Shawn Birst, P.E., PTOERS&H, Inc.10748 Deerwood Park Blvd SouthJacksonville, FL 32256Phone: 904-256-2370E-mail: [email protected]

Winston Harris, P.E., PTOERS&H, Inc.3125 W Commercial Blvd, Suite 130Fort Lauderdale, FL 33309Phone: 954-236-7369E-mail: [email protected]

Ryan Hormel, E.I.RS&H, Inc.10748 Deerwood Park Blvd SouthJacksonville, FL 32256Phone: 904-256-2143E-mail: [email protected]

Contacts

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